ZylSerialPort.NET is a thread based, event driven, asynchronous serial port .NET component.Use ZylSerialPort.NET component to easily communicate with external devices on serial port connection, such as modems, bar code readers, GSM.
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rsterm 1.0 rsterm is an easy to use serial terminal software built to speed up development or activities involving GSM modems, using standardized and custom AT commands
PHP serial extension 1.0 This is a loadable extension for PHP running on Windows implementing serial port handling and communications